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公开(公告)号：US09386425B2
公开(公告)日：2016-07-05
申请号：US14221631
申请日：2014-03-21
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Chia-Chun Hsu , Yih-Shen Chen , Chien-Chun Huang-Fu , Yu-Syuan Jheng , Chia-Hung Tsai
IPC: H04B7/00 , H04W4/08 , H04W4/10 , H04W36/32 , H04W72/00 , H04W36/08 , H04W76/00 , H04W4/06 , H04W74/00
CPC classification number: H04W4/08 , H04L5/0037 , H04L12/185 , H04L12/1886 , H04W4/06 , H04W4/10 , H04W24/08 , H04W36/0083 , H04W36/08 , H04W36/30 , H04W36/32 , H04W72/00 , H04W72/005 , H04W72/121 , H04W74/006 , H04W76/40
Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast Evolved Packet Service (EPS) bearer in an LTE network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. The multicast MBMS bearer is associated with a Temporary Mobile Group Identifier (TMGI), and wherein the TMGI is associated with the communication group ID. In one embodiment, the access information comprises mapping information between the TMGI and the communication group ID.
Abstract translation: 提供了一种通过LTE MBMS支持群组通信的方法。 UE首先在用于组通信的LTE网络中建立单播演进分组业务（EPS）承载。 UE属于具有通信组ID的通信组。 UE从网络接收基于多播决定的DL组通信的下行链路（DL）组播流量的接入信息。 然后，UE准备监视用于接收DL多播业务的组播多媒体广播多播服务（MBMS）承载。 组播MBMS承载与临时移动组标识符（TMGI）相关联，并且其中TMGI与通信组ID相关联。 在一个实施例中，访问信息包括TMGI和通信组ID之间的映射信息。
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82.发明授权Method for deactivated secondary cell measurement and communications apparatus utilizing the same 有权灭活二次电池测量方法及利用该方法的通信装置公开(公告)号：US09356744B2
公开(公告)日：2016-05-31
申请号：US14468526
申请日：2014-08-26
Applicant: MediaTek Inc.
Inventor： Chia-Hao Yu , Ju-Ya Chen , Kuan-Lin Chen
Abstract: A method for deactivated secondary Component Carrier (CC) measurement in a communications apparatus providing wireless communications services via a first CC in a wireless network includes: determining a switch timing to perform bandwidth extension or frequency adjustment required for performing a deactivated secondary CC measurement; extending an operation bandwidth or adjusting a center frequency of at least one signal processing component included in the communications apparatus at the switch timing, wherein an operation band defined by the operation bandwidth and the center frequency of the signal processing component covers at least a bandwidth of the secondary CC; and performing the deactivated secondary CC measurement after extending the operation bandwidth or adjusting the center frequency. The secondary CC is not able to perform data transmission or reception during a deactivated state.
Abstract translation: 一种用于在无线网络中经由第一CC提供无线通信服务的通信设备中的停用的次要分量载波（CC）测量的方法包括：确定执行去激活的次级CC测量所需的带宽扩展或频率调整的切换定时; 在切换定时延长操作带宽或调整包含在通信装置中的至少一个信号处理部件的中心频率，其中由操作带宽定义的操作频带和信号处理部件的中心频率至少覆盖 次级CC; 并且在扩展操作带宽或调整中心频率之后执行停用的次级CC测量。 辅助CC不能在停用状态期间执行数据发送或接收。
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公开(公告)号：US20160087704A1
公开(公告)日：2016-03-24
申请号：US14723689
申请日：2015-05-28
Applicant: MEDIATEK INC.
Inventor： Jiann-Ching Guey , Chia-Hao Yu , Ming-Po Chang
CPC classification number: H04B7/0617 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04W72/046 , H04W74/0833
Abstract: A method of control signaling in a beamforming system is proposed. A base station allocates a first sets of DL control resource blocks for DL transmission to a plurality of user equipments (UEs) in a beamforming network. Each set of DL control resource blocks is associated with a corresponding set of beamforming weights. The base station also allocates a second sets of UL control resource blocks for UL transmission from the UEs. Each set of UL control resource blocks is associated with the same corresponding set of beamforming weights. The base station transmits cell and beam identification information using a set of control beams. Each control beam comprises a set of DL control resource block, a set of UL control resource block, and the corresponding set of beamforming weights.
Abstract translation: 提出了一种波束成形系统中控制信令的方法。 基站向波束形成网络中的多个用户设备（UE）分配用于DL传输的第一组DL控制资源块。 每组DL控制资源块与相应的一组波束赋形权重相关联。 基站还从UE分配UL传输的第二组UL控制资源块。 每组UL控制资源块与相同的对应的波束赋形权重组相关联。 基站使用一组控制波束来发送小区和波束识别信息。 每个控制波束包括一组DL控制资源块，一组UL控制资源块和相应的一组波束成形权重。
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84.发明授权公开(公告)号：US09282523B2
公开(公告)日：2016-03-08
申请号：US14261747
申请日：2014-04-25
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Ju-Ya Chen , Yih-Shen Chen , Yen-Po Lee , Yi-Chun Wei , Tsang-Yi Shen
CPC classification number: H04W52/365 , H04B17/336 , H04L5/00 , H04L5/001 , H04W52/146 , H04W52/241 , H04W52/34 , H04W52/367 , H04W72/02
Abstract: A method of maximum output power configuration with UE preference in carrier aggregation is provided. A UE configures multiple component carriers (CCs) with carrier aggregation for communicating with a serving base station in a mobile communication network. The UE determines channel condition of multiple serving cells over the corresponding multiple CCs. The UE then determines maximum output power for each CC based at least in part on the corresponding channel condition of each CC. Finally, the UE transmits power headroom report (PHR) for each CC to the serving base station, wherein the PHR is calculated based on the determined maximum output power. As a result, the reported PH information is channel condition dependent, which can be used by eNB for facilitating better transmission scheduling.
Abstract translation: 提供了一种在载波聚合中具有UE偏好的最大输出功率配置的方法。 UE配置具有载波聚合的多个分量载波（CC），用于与移动通信网络中的服务基站进行通信。 UE在相应的多个CC上确定多个服务小区的信道状况。 UE然后至少部分地基于每个CC的相应信道状况来确定每个CC的最大输出功率。 最后，UE向服务基站发送每个CC的功率余量报告（PHR），其中基于确定的最大输出功率来计算PHR。 结果，报告的PH信息是信道条件相关的，可以由eNB使用以便于更好的传输调度。
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公开(公告)号：US20240146462A1
公开(公告)日：2024-05-02
申请号：US18486057
申请日：2023-10-12
Applicant: MEDIATEK INC.
Inventor： Guan-Yu Lin , Chia-Hao Yu
IPC: H04L1/1812 , H04L5/00 , H04W72/40
CPC classification number: H04L1/1812 , H04L5/0055 , H04W72/40
Abstract: Apparatus and methods are provided for relay-assisted retransmission. In one novel aspect, the remote UE receives data transmission from the source entity through a direct link and retransmission from a relay UE. In one embodiment, the relay UE receives feedback indication from the remote UE, transmits the feedback to the source entity, and retransmits one or more TBs to the remote UE through a SL connection upon detecting one or assisted retransmission triggers. In one embodiment, the feedback is a joint HARQ, wherein a NACK is sent when both the relay UE and remote UE failed, and an ACK is sent when at least one of the relay UE and the remote UE succeeds. In one embodiment, the relay UE retransmits one or more successfully received TBs to the remote UE upon receiving a failure indication from the remote UE or receiving retransmission indication from the source entity.
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Patent Agency Ranking
公开(公告)号：US20230102742A1
公开(公告)日：2023-03-30
申请号：US17939843
申请日：2022-09-07
Applicant: MEDIATEK INC.
Inventor： Li-Chuan Tseng , Chia-Hao Yu , Cheng-Rung Tsai , Chun-Fan Tsai , Jiann-Ching Guey
IPC: H04W74/08
Abstract: A method of acquiring timing advance (TA) for neighbor cells to reduce latency and interruption for inter-cell mobility is proposed. A UE is configured with a set of active cells for fast cell-switching. To reduce handover interruption, UE performs early RACH for potential target cells and obtains the TA of the potential target cells. In one novel aspect, for overhead reduction, a single RACH preamble may be received by multiple cells. Using a single RACH preamble, UE acquires TA for multiple cells, aiming at reducing the interruption due to RACH during handover. In another novel aspect, UE reports DL reception timing difference between the serving cell and the neighbor cell, and then adjust the TA for the neighbor cell accordingly.
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87.发明授权公开(公告)号：US11330457B2
公开(公告)日：2022-05-10
申请号：US16043760
申请日：2018-07-24
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Ming-Po Chang , Jiann-Ching Guey
Abstract: A beam indication (BI) mechanism is proposed to provide user equipment (UE) information of network (NW) beam(s) for later transmission. UE can then select its UE beam(s) for the later transmission based on the BI. In one embodiment, NW provides beam management configuration to UE via Radio Resource Control (RRC) signaling, and then provides beam indication index signaling to UE via MAC-CE or DCI. The beam management configuration comprises a mapping table between network beams and configured reference signal (RS) resources. The beam indication index signaling indicates one or more preferred beam pair links (BPLs). Upon triggering a beam management procedure by the network, UE is able to identify the beam management procedure and selects corresponding UE beam(s) based on the beam management configuration and the beam indication index signaling.
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公开(公告)号：US10779171B2
公开(公告)日：2020-09-15
申请号：US16127481
申请日：2018-09-11
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Ming-Po Chang , Chiou-Wei Tsai , Chien-Hwa Hwang , Jiann-Ching Guey
Abstract: A method of beam failure recovery request (BFRQ) transmission is proposed. UE can search for UE-specific control channel in a search space that is signaled specifically for monitoring network response of the BFRQ. Furthermore, configurations indicated specifically for BFRQ can be carried by dedicated signaling such as high-layer radio resource control (RRC) signaling. After successfully rebuilding connection, UE assumes the demodulation reference signal (DMRS) ports of UE-specific control channel to be spatially quasi-co-located (QCL-ed) with the reference signals identified during the beam failure recovery procedure.
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公开(公告)号：US10687179B2
公开(公告)日：2020-06-16
申请号：US16106541
申请日：2018-08-21
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Chia-Chun Hsu , Yih-Shen Chen , Chien-Chun Huang-Fu , Yu-Syuan Jheng
IPC: H04B7/00 , H04W4/08 , H04W4/10 , H04W76/40 , H04W74/00 , H04W36/08 , H04W36/00 , H04W36/32 , H04W4/06 , H04W72/00 , H04L5/00 , H04L12/18 , H04W24/08 , H04W36/30 , H04W72/12
Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast bearer in a network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. In one embodiment, The UE requests to switch the DL multicast traffic from the multicast MBMS bearer to the unicast bearer upon detecting that the UE is approaching an MBMS coverage boundary. In another embodiment, the UE transmits an indication of preferred target cells to the network before performing a handover and thereby maintaining multicast service continuity of the group communication.
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公开(公告)号：US10674383B2
公开(公告)日：2020-06-02
申请号：US16043718
申请日：2018-07-24
Applicant: MEDIATEK INC.
Inventor： Chia-Hao Yu , Yuanyuan Zhang , Ming-Po Chang , Jiann-Ching Guey
Abstract: A method of beam failure recovery request (BFRQ) transmission is proposed. In a first step of beam failure detection, UE detects a beam failure condition of the original serving beam. In a second step of new candidate beam identification, UE performs measurements for candidate beam selection. In a third step of beam failure recovery request (BFRQ) transmission, UE transmits a BFRQ message to BS upon the triggering condition for BFRQ transmission is satisfied. In a fourth step of monitoring BS response, UE monitors BS response to decide the success or failure of the BFRQ transmission attempt. In one advantageous aspect, the BFRQ transmission is over dedicated contention-free PRACH or PUCCH resources or over contention-based PRACH resources. Furthermore, a beam failure recovery timer is used to oversee the initiation and the termination of the BFRQ transmission.
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